$(document).ready(function() {
    $(window).resize(function(event) {
        var body_height = $(window).height();
        var body_width  = $(window).width();
        $('.left_menu').height(body_height-72);
        $('.loading_page').width(body_width-226);
        $('.loading_page').height(body_height-110);
    });
    var body_height = $(window).height();
    var body_width  = $(window).width();
    $('.left_menu').height(body_height-72);
    $('.loading_page').width(body_width-226);
    $('.loading_page').height(body_height-110);

    /* 去除a链接以及button按钮虚线框 */
    $('button,a').attr('hidefocus','true');
});